Process for the manufacture of compositions which can be used as emulsifying and dispersing surfactants the compositions obtained and their uses

摘要

In order to manufacture a composition mainly containing compounds with ester and amide functions, in particular in the form of ester-amides, as well as compounds with amine functions, such as ester-amines, the salts of amines, monoglycerides and diglycerides, formed from monomeric, dimeric, trimeric and/or tetrameric fatty acids contained in a polymerized polyunsaturated oil, a process is implemented which comprises the following stages:a) use (or preparation) of a polymerized oil by polymerization of a polyunsaturated vegetable or animal oil;b) treatment of said polymerized oil by entrainment with water vapor; andc) reaction of the polymerized oil thus treated with an excess of at least one aminoalcohol, in the presence or not of a catalyst.This composition can be used as an emulsifying and dispersing surfactant, in particular as an additive for dispersing hydrates in oil effluents.